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Lua i Stíl Chicago (17ú heag.)ebrary, Inc, agus William Bragg Ewald. From Kant to Hilbert: A Source Book in the Foundations of Mathematics. Oxford : New York: Clarendon Press ; Oxford University Press, 1999.
Lua MLA (9ú heag.)ebrary, Inc, agus William Bragg Ewald. From Kant to Hilbert: A Source Book in the Foundations of Mathematics. Clarendon Press ; Oxford University Press, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.